Animal crossing time is like real life time, the time just passes. The days will pass when
your day passes unless you mess with the time. I recommend just going on ac every day and
not worrying about the times.

You'll see gulliver come out and you have to speak to him multiple times because he keeps
speaking gibberish. Later he will assume you are an alien and ask for your help.
You must find five pieces around the town.

I'm pretty sure in your attic there is a setting called mysterious cat or something like
that that lets cats like blanca and katie come to your town randomly. It rarely happens,
so don't expect it to come tomorrow or even in a week.